14k Gold Round-Cut Diamond (1/3 cttw) Stud Earrings Enjoy the classic appeal of these diamond studs, whose sophisticated sparkle and timeless round cut ensure that they will remain a treasure for years to come. Friction-back posts All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Imported Carat weight listed is the total for both studs.